How often are papers changed and updated after initial submission? How
extensive are the changes?

This graph shows how many submissions there have been for papers. We
are only analysing papers that have had more than one submission.

This graph is a plot of the number of papers with submissions against
the days from the initial submission. This is based on the entire
population of papers in the LANL archive. Because this data is based
on the abstract's date records, it can give no indication of the
nature of re-submissions. Papers with only one submission do not
appear.

The following graphs are the cumulative updates seperated out into the
first update, second, third and fourth.

The following data is based on:
The last six months of updates to the archive
Taking the "diff" between a submission and the previous submission to that
article (and recording the amount of days between these two
submissions).
The number of lines of difference between either the abstract, if there
was no update to the paper, or the paper

This graph shows a plot of the amount of change that has been made to
the abstract/document against the time of the update (compared to the
previous update).

This is a graph of the average (sum of changes/number of papers) amount
of change per day since initial submission, excluding days that had 3 or
less papers changed on that day. Only includes changes to tex-only
documents (no tar.gz or .pdf format files).

The following graphs are based on performing the following:

If there is no paper for this change, perform diff abstract1
abstract2

This graph shows the average changes (total amount of changes divided
by number of papers with a change on that day) made to papers, compared to
the number of days since the paper was submitted. Days that had less than
5 submissions on that day are ignored.

This graph shows the average changes made to papers, compared to the
number of days since the paper was submitted.

This graph shows the average updates made to papers submitted in
December 1999 (a total of 175 changes were made). This excludes changes
made to the abstract.